What is the purpose of collecting system baseline performance data?
What will be an ideal response?
Baseline performance data shows what the system actually does in a particular installation, providing a benchmark to real operating conditions that are specific to that unit and application. These can be used later for comparison when servicing a system.
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Conservation of energy suggests that potential energy is converted to kinetic energy when an object falls in a vacuum.  FIGURE 1.png)
Velocity at impact can be determined as follows: V = Constant  figure 2.png)
(a) Determine the constant so that the equation is valid for h in ft and V in feet per second (ft/s). (b) Determine the constant so that the equation is valid for h in ft but V in mph. (c) If you drop an object from 455 ft, what is the velocity on impact with the ground in mph and ft/s?
Receptacles must be placed to serve the countertop surfaces in a kitchen so that no more than __________ feet are between each receptacle.
a. 2 b. 3 c. 4 d. 6
Gaius Marius’s great innovation was to
a. extend citizenship to Rome’s Italian allies. b. privatize the Roman army. c. refuse reelection as consul after his first term. d. hand Jugurtha over to his protégé Sulla.
An oscilloscope's seconds/division switch is set on 20 ms/div. If a sine wave measures 4 divisions horizontally, what frequency is being measured?
A) 12.5 Hz B) 50 Hz C) 25 Hz D) More information is needed.